AM79C978A AMD [Advanced Micro Devices], AM79C978A Datasheet - Page 180
![no-image](/images/no-image-200.jpg)
AM79C978A
Manufacturer Part Number
AM79C978A
Description
Single-Chip 1/10 Mbps PCI Home Networking Controller
Manufacturer
AMD [Advanced Micro Devices]
Datasheet
1.AM79C978A.pdf
(256 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AM79C978AKC/W
Manufacturer:
AMD
Quantity:
20 000
Company:
Part Number:
AM79C978AKCW
Manufacturer:
AMD
Quantity:
6 605
- Current page: 180 of 256
- Download datasheet (4Mb)
TBR2 and TBR3: 10BASE-T PHY Identifier
(Registers 2 and 3)
Registers 2 and 3 contain a unique PHY identifier, con-
sisting of 22 bits of the organizationally unique IEEE
Identifier, a 6-bit manufacturer’s model number, and a
4-bit manufacturer’s revision number. The most signifi-
cant bit of the PHY identifier is bit 15 of Register 2; the
least significant bit of the PHY identifier is bit 0 of
180
Reg
Reg
3
3
3
2
15-10
15-0
Bits
Bits
9-4
3-0
PHY_ID[31-16]
PHY_ID[15-10]
PHY_ID[9-4]
PHY_ID[3-0]
Name
Name
Table 50. TBR2: 10BASE-T PHY Identifier (Register 2)
Table 51. TBR3: 10BASE-T PHY Identifier (Register 3)
IEEE Address (bits 3-18);
Register 2, bit 15 is MS bit of PHY
Identifier
IEEE Address
(bits 19-24)
Manufacturer’s
Model Number
(bits 5-0)
Revision Number
(bits 3-0); Register 3,
bit 0 is LS bit of PHY
Identifier
Description
Description
Am79C978A
Register 3. Register 2, bit 15 corresponds to bit 3 of the
IEEE Identifier and register 2, bit 0 corresponds to bit
18 of the IEEE Identifier. Register 3, bit 15 corresponds
to bit 19 of the IEEE Identifier and register 3, bit 10 cor-
responds to bit 24 of the IEEE Identifier. Register 3, bits
9-4 contain the manufacturer’s model number and bits
3-0 contain the manufacturer’s revision number. These
registers are shown in Table 50 and Table 51.
Read/Write
RO
RO
RO
Read/
Write
RO
011010
(1A Hex)
110111
(BA Hex)
0000
0000000000000000
(0000 Hex)
Default Value
Default Value
Retains original
value
Retains original
value
Retains original
value
Retains original
Value
Soft Reset
Soft Reset
Related parts for AM79C978A
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AMD-751AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751ACAMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-751](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-751AMD-751-TM System Controller Revision Guide
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-X5-133SFZ](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
AMD-X5-133SFZAm5X86? Microprocessor Family
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8131BLC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
Hyper Transport PCI-X Tunnel
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-8111AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
HyperTransport I/O Hub
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-640AC](/images/manufacturer_photos/0/0/14/advanced_micro_devices_tmb.jpg)
Part Number:
Description:
System Controller
Manufacturer:
Advanced Micro Devices
Datasheet:
![AMD-K6](/images/no-image3.png)
Part Number:
Description:
AMD-K6 Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-K6-2E/400AFR](/images/no-image3.png)
Part Number:
Description:
AMD-K6-2E Embedded Processor
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet:
![AMD-8132BLCT](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-K6-IIIE+550ACR](/images/manufacturer_photos/0/0/44/amd__advanced_micro_devices__tmb.jpg)
Part Number:
Description:
Manufacturer:
AMD (ADVANCED MICRO DEVICES)
Datasheet:
![AMD-766AC](/images/no-image3.png)
Part Number:
Description:
Peripheral Bus Controller
Manufacturer:
AMD [Advanced Micro Devices]
Datasheet: